FIGURES 243–248 in Entogoniopsis gen. nov. and Trilamina gen. nov. (Bacillariophyta): a survey of multipolar pseudocellate diatoms with internal costae, including comments on the genus Sheshukovia Gleser

FIGURES 243–248. Light micrographs showing the range of morphological variation in Trilamina westiana. Fig. 243: BM52820, Barbadoes. Slide thickness prevents Köhler illumination. Fig. 244: BM coll. Adams GC3466, Springfield, Barbadoes. Fig. 245: BM2029, Barbadoes, holotype. Slide thickness prevents Köhler illumination. Fig. 246: BM coll. Adams F1414, Barbadoes. Fig. 247: BM coll. Adams J4252, Springfield, Barbadoes. Fig. 248: BM coll. Adams F1413, Newcastle, Barbadoes.